Carton



H. L. GREVE CAR-TON Filed Dec. 2, 1936 INVENTOR. HERMA xv L GEE (/5.

Patented Feb. 21, 1939 PATENT OFFICE CARTON Herman L. Greve, Hollis, N. Y., assignor to International Mailing Tube and Wrapper Company,

Long Island City, N. York Y., a corporation of New Application December 2, 1936, Serial No. 113,817

8 Claims.

My invention relates to cartons.

The object of my invention is to provide a carton having exceptional strength which may be made from a single sheet of card or fiber-board without Waste of material, and in particular to provide a construction in which the ends and corner portions are rendered rigid and strong to prevent bulging and to permit them to be stacked full of merchandise without crushing.

A further object is to provide locking means located entirely on the upper side of the carton and comprising a folded overlapping seam which extends the entire length of the carton and forms a rigid band thru which the locking clips extend and whereby tearing of the carton at the points of locking is prevented.

Referring to the drawing which forms a part of the specification;

Fig. 1 is a perspective View of a carton embodying my invention, showing it in its erected and locked condition.

Fig. 2 is a perspective view showing it in a partly erected condition.

Fig. 3 is a cross-sectional view taken on line 3-3 of Fig. 1.

Fig. 4 is a View of the blank, the dotted lines indicating the lines on which the blank is folded in erecting the carton.

The blanks may be shipped to a user and folded for use as required, as will be readily understood.

In erecting the carton the blank is first folded on lines l respectively, at right-angles to the bottom Ill, then on lines II respectively, after which the side interlocking portions I2 are folded and interlocked as illustrated at I3 in Figure 2.

The end-strip portions I4 respectively are then folded on lines I5 respectively, and the end flap portions thereof l6 are folded on lines I! respectively and extend from the top side to the bottom side of the carton.

These flap portions [6 may be left loose if desired or may be cemented to the flap portions l2 by cement It with which the inner sides of the said portions are coated, and if desired, the outer sides of the said flap portions may also be coated with cement in the same manner to permit the contacting parts to be held firmly together and thus reinforce the corners and end parts of the carton since the flaps effectually prevent any shifting or relative movement, and also serve as struts to carry a load placed on the top of the carton, as will be readily understood.

The box is closed by folding the outer side flaps l8 respectively on lines l9 respectively, and the top portions 20 on lines 2| respectively, after which the band portions 22 are formed by folding them on lines 23 respectively, as illustrated.

The band portions 22 and top portions 20 are provided with notched openings 24 with all of the notched openings registering when the band is in its interlocked condition as illustrated in Figures 1 and 3, and soft metal clips 25 fixed to the flap portions I4, extend upwardly therefrom and thru the openings 24 and are bent over in the usual manner, above the top of the top flap portion 2|] to hold the top flap portion in position as shown in Figure l.

A clip 25 is also fixed on the under flap portion 20 midway the length of the carton, and the folded edge of the band and top flap portion 2!] are formed with a notch 26 in which the neck of the clip rests with its free end bent over onto the top of the band and serving to clamp it and prevent relative shifting of the parts.

Manufacturers of cartons of this type will have no trouble in understanding its construction and the advantages afiorded by its use.

The construction as a whole is strong and durable, and may be made at a low cost.

Having thus described my invention I claim as new:

1. A carton of the character described, comprising bottom and end portions, and interlocking side portions, an inwardly extending strip carried by each end portion and overlying the adjacent upper end of the box and each of said strips having end flap portions extending over a portion of the interlocking side portions to the bottom side of the carton and serving to reinforce the corners thereof and means for permanently and rigidly securing the end flap portions to the outer sides of said interlocking portions to hold said portions against relative movement.

2. A carton of the character described, comprising a bottom and end portions, and interlocking side portions, an inwardly extending strip carried by each end portion and overlying the upper end of the box, an end fiap on each inwardly extending strip extending over the adjacent end of the interlocking side portions to the bottom side of the carton and serving to reinforce the corners thereof, outer side portions extending from the bottom side edges of the carton, cover portions carried by the outer side portions, 9. return-bent band portion formed on the free edge of each cover portion with the return bent band portions interlocking with each other and extending the length of the carton and means for locking the interlocking band portions and cover portions to the inwardly extending strips,

the overlying band portion and the top cover portion having an edge notch therein intermediate their ends and a bendable clip carried by the underlying cover portion projecting thru said notch and engaged with the upper side of the overlying cover portion.

3. A carton of the character described, comprising a bottom and end portions, and interlocking side portions, an inwardly extending strip carried by each end portion and overlying the upper end of the box, an end flap on each inwardly extending strip extending over the adjacent end of the interlocking side portions to the bottom side of the carton and serving to reinmeans for locking the interlocking band portions and cover portions to the inwardly extending strips, and said end flaps being permanently and rigidly secured to said interlocking side portions for holding said parts against relative movement.

HERMAN L. GREVE. 

